#include <iostream>
using namespace std;
//常量定义方式
//1:#define 宏常量
//2:const修饰的变量

#define DAY 7

int main3()
{
	system("chcp 65001");
	//DAY = 14;		//常量不可修改
	cout << "一周总共有:" << DAY << "天" << endl;

	const int month = 12;
	//month = 24;	//常量不可修改
	cout << "一年总共有:" << month << "月" << endl;
	system("pause");
	return 0;


}